The fat body of prepupal and pupal blackflies and its utilization by the female during its life cycle

• Published in: Meditsinskaia parazitologiia i parazitarnye bolezni no. 2; p. 50
• Main Authors: Usova, Z V, Savust'ianenko, T L
• Format: Journal Article
• Language: Russian
• Published: Russia (Federation) 01-03-1990
• Subjects: Animals; Fat Body - metabolism; Female; Glycogen - metabolism; Histocytochemistry; Larva - genetics; Lipid Metabolism; Proteins - metabolism; Pupa - growth & development; Simuliidae - growth & development
• ISSN: 0025-8326

The study performed revealed lipids, proteins and carbohydrates in the content of trophocytes which formed greater assemblies (lipid-protein-glycogen complexes, lipid-protein and protein-glycogen granules). The prepupal stage off stream Simulium noelleri was featured by neutral lipids and granules consisting of protein and glycogen. Mature pupae and emerged females had acid lipids and lipid-protein-glycogen complexes. Prepupal stages of the river S. morsitans, Schönbaueria pussilla sp. 1, Sch. pussilla demonstrated acid and neutral lipids that formed lipid-protein granules. The aforementioned granules were not infrequent in the river population of S. noelleri but in some of them protein-glycogen granules were revealed. The different correlations of lipid-protein and protein-glycogen granules were documented in the pupae of the studied species and emerged females. Gradual consumption of lipid accumulations was noted in the development of females ovaries in all species studied. Besides, the greater complexes were the first to be consumed, than followed proteins, carbohydrates and finally lipids.